EP 2957015 A2 20151223 - METHODS FOR ANTI-ISLANDING IN DISTRIBUTED-SOURCE ELECTRICAL POWER GENERATION AND DISTRIBUTION SYSTEMS AND ELECTRICAL SYSTEMS AND APPARATUS USING SAME
Title (en)
METHODS FOR ANTI-ISLANDING IN DISTRIBUTED-SOURCE ELECTRICAL POWER GENERATION AND DISTRIBUTION SYSTEMS AND ELECTRICAL SYSTEMS AND APPARATUS USING SAME
Title (de)
VERFAHREN ZUR VERHINDERUNG EINER INSELBILDUNG IN EINER STROMERZEUGUNG MIT VERTEILTEN QUELLEN SOWIE VERTEILERSYSTEME, STROMSYSTEME UND VORRICHTUNG DAMIT
Title (fr)
PROCÉDÉS D'ANTI-ÎLOTAGE DANS LES SYSTÈMES DE PRODUCTION ET DE DISTRIBUTION D'ÉNERGIE À SOURCES RÉPARTIES ET SYSTÈMES ET APPAREILS ÉLECTRIQUES METTANT EN OEUVRE LESDITS PROCÉDÉS
Publication
Application
Priority
- US 201361764700 P 20130214
- US 201414156911 A 20140116
- IB 2014000065 W 20140120
Abstract (en)
[origin: US2014225457A1] A method of detecting an interruption of grid electrical power at an output of an inverter power train coupled to an electrical grid includes generating a reference waveform representing a power train output current waveform with a current control loop. An out-of-phase control signal is generated, which is synchronized and out-of-phase with a grid voltage waveform, with a voltage control loop coupled to the output of the inverter power train, the voltage control loop having a gain proportional to an inverter power train load impedance. The reference waveform and the out-of-phase control signal are combined to generate a power train control signal for producing a small phase difference between the inverter power train output current waveform and the grid voltage waveform. The inverter power train output is monitored for a change and the inverter power train is turned off in response to a change in the inverter power train output caused by an increase in inverter power train load impedance resulting from an interruption in the grid electrical power.
IPC 8 full level
H02J 3/38 (2006.01)
CPC (source: EP US)
H02H 3/48 (2013.01 - US); H02J 3/38 (2013.01 - EP US); H02J 3/44 (2013.01 - US); H02J 3/388 (2020.01 - EP US)
Citation (search report)
See references of WO 2014125348A2
Citation (examination)
- MIHAI CIOBOTARU ET AL: "Accurate and Less-Disturbing Active Antiislanding Method Based on PLL for Grid-Connected Converters", IEEE TRANSACTIONS ON POWER ELECTRONICS, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, USA, vol. 25, no. 6, 1 June 2010 (2010-06-01), pages 1576 - 1584, XP011299673, ISSN: 0885-8993
- M. CIOBOTARU ET AL: "A New Single-Phase PLL Structure Based on Second Order Generalized Integrator", POWER ELECTRONICS SPECIALISTS CONFERENCE, 2006. PESC '06. 37TH IEEE JEJU, KOREA 18-22 JUNE 2006, 1 January 2006 (2006-01-01), pages 1 - 6, XP055366482, ISBN: 978-0-7803-9716-3, DOI: 10.1109/PESC.2006.1711988
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2014225457 A1 20140814; US 9490626 B2 20161108; EP 2957015 A2 20151223; KR 20150143437 A 20151223; WO 2014125348 A2 20140821; WO 2014125348 A3 20141127
DOCDB simple family (application)
US 201414156911 A 20140116; EP 14703627 A 20140120; IB 2014000065 W 20140120; KR 20157025163 A 20140120